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网格是构建在互联网上的一组新兴技术,通过它可以把分散在不同地理位置的资源整合起来实现各种资源的全面共享。它本质上解决了在动态变化的多个虚拟机构间共享资源和协同工作的问题。移动代理技术集软件、通信、分布系统的技术于一体,具有封装私有特征的能力、灵活的协调能力和更好的网络适应性。网格和移动代理技术的结合,在支持任务调度、作业管理、资源管理以及智能决策等网格关键技术的问题领域有着独到的优点。由于网格的异构性以及虚拟组织之间没有信任传递关系,导致移动代理在跨虚拟组织迁移时,存在安全漏洞,本文提出一种基于单向函数签名链的移动代理认证机制,通过在平台之间建立强信任关系来实现对移动代理的安全认证,从而保护移动代理平台在网格环境中免受恶意代理的攻击。
Grid is a set of emerging technology built on the Internet, through which resources can be dispersed in different geographical locations to achieve a comprehensive sharing of resources. It essentially solves the problem of sharing resources and working together across multiple dynamically changing virtual organizations. Mobile agent technology integrates the software, communication and distribution system technologies, and has the capability of encapsulating private features, flexible coordination and better network adaptability. The combination of grid and mobile agent technologies has unique advantages in areas that support key grid technologies such as task scheduling, job management, resource management, and intelligent decision making. Due to the heterogeneity of the grid and the lack of trust and transmission between virtual organizations, mobile agents have security loopholes when migrating across virtual organizations. This paper proposes a mobile agent authentication mechanism based on one-way function signature chains. To establish a strong trust between the mobile agent to achieve the security certification, thereby protecting the mobile agent platform in a grid environment from malicious agents attack.